[150858]   
Study to upgrade thr Angola air trafic control system : equipment specifications. - Washington : Boeing aersystems international, 1974. - 48 p.
Descritores: Angola | Controlo aéreo | Tráfego aéreo
Cota: nucleo africa / Arquivo Central|ANA

[150860]   
Angola air trafic control system : operation requirements. - Washington : Boeing aersystems international, 1974. - 163 p.
Descritores: Angola | Controlo aéreo | Tráfego aéreo
Cota: nucleo africa / Arquivo Central|ANA

[150862]   
Angola air trafic control system : implentation plans and support requirements. - Washington : Boeing aersystems international, 1974. - 225 p.
Descritores: Angola | Controlo aéreo | Tráfego aéreo
Cota: nucleo africa / Arquivo Central|ANA